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119 lines
3.1 KiB
119 lines
3.1 KiB
/*
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* Copyright (C) 2015-2022 Département de l'Instruction Publique (DIP-SEM)
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*
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* Copyright (C) 2013 Open Education Foundation
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*
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* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
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* l'Education Numérique en Afrique (GIP ENA)
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*
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* This file is part of OpenBoard.
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*
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* OpenBoard is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License,
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* with a specific linking exception for the OpenSSL project's
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* "OpenSSL" library (or with modified versions of it that use the
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* same license as the "OpenSSL" library).
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*
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* OpenBoard is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenBoard. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "UBCoreGraphicsScene.h"
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#include "domain/UBGraphicsMediaItem.h"
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#include "domain/UBGraphicsWidgetItem.h"
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#include "domain/UBGraphicsGroupContainerItem.h"
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#include "core/memcheck.h"
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UBCoreGraphicsScene::UBCoreGraphicsScene(QObject * parent)
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: QGraphicsScene ( parent )
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, mIsModified(true)
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{
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//NOOP
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}
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UBCoreGraphicsScene::~UBCoreGraphicsScene()
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{
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//we must delete removed items that are no more in any scene
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//at groups deleting some items can be added to mItemsToDelete, so we need to use iterators.
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foreach(QGraphicsItem* item, mItemsToDelete)
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{
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if (item)
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{
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if (item->scene() == NULL || item->scene() == this)
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{
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delete item;
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item = NULL;
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}
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}
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}
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mItemsToDelete.clear();
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}
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void UBCoreGraphicsScene::addItem(QGraphicsItem* item)
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{
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addItemToDeletion(item);
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if (item->type() == UBGraphicsGroupContainerItem::Type && item->childItems().count()) {
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foreach (QGraphicsItem *curItem, item->childItems()) {
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removeItemFromDeletion(curItem);
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}
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}
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if (item->scene() != this)
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QGraphicsScene::addItem(item);
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setModified(true);
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}
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void UBCoreGraphicsScene::removeItem(QGraphicsItem* item, bool forceDelete)
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{
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QGraphicsScene::removeItem(item);
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if (forceDelete)
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{
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deleteItem(item);
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}
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setModified(true);
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}
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bool UBCoreGraphicsScene::deleteItem(QGraphicsItem* item)
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{
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if(mItemsToDelete.contains(item))
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{
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UBGraphicsItem *item_casted = dynamic_cast<UBGraphicsItem *>(item);
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if (item_casted != NULL)
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item_casted->clearSource();
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mItemsToDelete.remove(item);
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delete item;
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item = NULL;
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return true;
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}
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else
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return false;
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}
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void UBCoreGraphicsScene::removeItemFromDeletion(QGraphicsItem *item)
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{
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if(NULL != item){
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mItemsToDelete.remove(item);
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}
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}
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void UBCoreGraphicsScene::addItemToDeletion(QGraphicsItem *item)
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{
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if (item) {
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mItemsToDelete.insert(item);
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}
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}
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